bananas

American

[buh-nan-uhz] / bəˈnæn əz /

adjective

Slang.

crazy; deranged.

All that chatter is driving me bananas.
wildly enthusiastic.

The crowd went bananas when the music began.

bananas British

/ bəˈnɑːnəz /

adjective

slang crazy (esp in the phrase go bananas )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of bananas

1965–70, see banana, -s ³

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In my house, black beans are to brownies as bananas are to banana bread.

From Salon • May 5, 2026

I’ll have a green smoothie with kale, spinach, bananas and blueberries and some collagen powder.

From Los Angeles Times • May 1, 2026

Breakfast was porridge with bananas and peanut butter, while lunch was "usually a massive plate of rice with marmite with two eggs, or cheesy fried potatoes with eggs and veg".

From BBC • Apr. 27, 2026

But some entrepreneurs have also identified business opportunities, including food sellers who offer hungry drivers bread and bananas, or more elaborate meals of spicy biryani rice.

From Barron's • Apr. 21, 2026

She shoves down a breakfast of oatmeal and bananas, gets what she needs from the RV, and heads out.

From "A Heart in a Body in the World" by Deb Caletti

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023